63006: Content could not be formatted for this channel. See Channel-specific error

Twilio returns 63006 when it cannot format the content you sent for the selected channel. Review the channel-specific error message in the message logs to find the exact formatting issue, and compare your template against Twilio's channel support and content-template rules. Twilio sends the most complex translation supported by the chosen channel, and some content components can still be incompatible across channels.

• The content template includes a type or component that the destination channel does not support.
• The template includes multiple content types, and Twilio cannot translate the message into a format the selected channel supports.
• Variable values, names, or URL samples do not follow Content Template rules, so Twilio cannot render the final message correctly.

• Check the channel support table and send a content type that the destination channel supports.
• Remove or replace any unsupported components, then resend the message with a translation that matches the target channel.
• Validate your variable names, counts, and values, and make sure any URL path samples resolve to publicly hosted media or URL samples.
• Open the message error details in Twilio Console and use the channel-specific error message to pinpoint the formatting problem.

• Content Types Overview
• Using Variables with Content Templates
• Debugging Tools